So what, like... MK8D Part A + MK8D Part B 1/2 of tracks 1/2 of tracks I mean, it's still split into separate parts. If somebody had Part A and you had Part B, it's just like before - you don't have the tracks, you can't play together. At least you would probably get them cheaper, but then you'd have to switch between them if you want to play the other tracks. The way it's split up, they might as well be two separate games because they still wouldn't work together. I still don't think it's such a good idea. On paper, yeah, but actually trying it?